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- What is the average salary for Java development?
- 1. Fresh graduate Java engineers: 5K for ordinary level, 10K for those with strong ability. 2. Java engineer with one year of work experience: 8K for ordinary level, 15K for strong ability. 3. Java engineer with three years of work experience: 10-15K for ordinary level, 18-20K for those with strong ability. 4. Java engineers with five years of work experience or above: 18K-30K for ordinary level, 25K-40K for those with strong ability.
- JavaBase 858 2024-03-15 11:06:50
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- What does java routing mean?
- 1. In Java development, routing refers to the process of distributing requests to the corresponding processor for processing based on the requested URL address. 2. In Web development, routing refers to distributing requests to the corresponding processor based on the URL address requested by the user. 3. By defining routing rules, different URL addresses can correspond to different processing logic, and flexible page jumps and data processing can be achieved.
- JavaBase 1495 2024-03-15 11:06:53
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- what is javase
- Java SE, "Java Platform, Standard Edition", is part of the Java platform. It is a basic Java programming environment that provides a standard development and running environment for Java applications. It is the core of the Java platform and includes the Java programming language, Java Basic components such as virtual machines and Java class libraries are designed to provide Java developers with a common, standard development and running environment so that they can more easily write high-quality Java applications.
- JavaBase 2660 2024-01-11 09:54:36
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- What are cookies in java
- In Java, a cookie is a mechanism used to pass information between a web browser and a server. It is a small piece of text information that is sent by the server to the client's browser and stored on the client's computer. The browser will automatically include the cookie information in the HTTP header and send it back to the server in future requests. Cookies are usually used to identify the user, track the user's status, and store the user's personalized preferences.
- JavaBase 1675 2024-01-02 13:59:52
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- Summary of java basic knowledge
- Java is a widely used programming language with features such as cross-platform, security, portability, and multi-threading. Therefore, it is widely used in various software development fields. When learning Java programming, there are some key concepts and codes that Java beginners must master.
- JavaBase 1232 2023-10-24 10:21:10
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- I secretly looked at some computer basics, and from now on learning Java is like cheating!
- Machine language is a language that a computer can directly recognize. It is a computer language directly expressed in binary code instructions. It is a code composed of a string of 0s and 1s, with a certain number of digits, and is divided into several segments. The coding of each segment represents a different meaning.
- JavaBase 1824 2023-07-26 17:30:05
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- My girlfriend cried and said she couldn't learn Java. That night I taught her the basics...
- Java provides an integrated development toolkit JDK, which allows us to compile the Java code we write into a bytecode file (class file). The Java Virtual Machine (JVM) is responsible for converting the bytecode into machine code, so that it can be used in various operating systems. Executed on the computer, the operating system controls the hardware to respond after receiving the instructions.
- JavaBase 1670 2023-07-26 17:28:17
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- What to do if java fileinputstream has Chinese garbled characters
- Solution to java fileinputstream Chinese garbled code: 1. Open the corresponding Java file; 2. Use "InputStreamReader" to convert "FileInputStream" to "FileReader" and specify the encoding format as "GBK".
- JavaBase 5026 2023-02-03 16:15:18
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- What are the six principles of design patterns?
- The six principles of design patterns: 1. The single responsibility principle, the core of which is to control the granularity of classes, decouple objects, and improve their cohesion; 2. The opening and closing principle, which can be achieved through "abstract constraints and encapsulation changes" ; 3. The Liskov substitution principle mainly expounds some principles about inheritance; 4. The dependency inversion principle reduces the coupling between clients and implementation modules; 5. The interface isolation principle is to constrain interfaces and reduce class-to-interface dependency Dependencies; 6. Demeter's Law, which requires limiting the width and depth of communication between software entities.
- JavaBase 19036 2023-02-22 11:32:06
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- what is sdk
- The full name of sdk is "Software Development Kit", which means "software development kit" in Chinese. It is a set of tools provided by manufacturers of hardware platforms, operating systems (OS) or programming languages. SDKs assist software developers in creating applications for specific platforms, systems or programming languages. A basic SDK usually consists of a compiler, debugger, and application programming interface (API), but may also include other content, such as: documentation, libraries, runtime/development environment, testing/analysis tools, network protocols, etc.
- JavaBase 51542 2023-01-06 15:26:39
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- What is the difference between & and && in java
- The difference between & and && in Java: 1. When the && operator operates, when the value of the first expression is false, the second expression will not be calculated; while the & operator does not care about the first expression. Both expressions will be executed whether the value of the expression is true. 2. The & operator can be used as a bitwise operator, but the && operator cannot.
- JavaBase 8772 2023-01-06 15:07:00
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- How to use java equals() method
- In Java, the equals() method is used to detect whether one object is equal to another object, the syntax is "Object.equals(Object2)"; this method determines whether two objects have the same reference. If the two objects have the same reference, They must be equal. The equals() method cannot operate on variables of basic data types.
- JavaBase 9111 2023-01-06 14:42:33
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- What are the three major characteristics of java
- The three major characteristics of Java are: 1. Encapsulation, which means hiding certain information of a class inside the class and not allowing direct access by external programs. Instead, the operations and access to the hidden information are realized through the methods provided by the class. 2. Inheritance means that the subclass has all the properties and methods of the parent class, thereby realizing code reuse. 3. Polymorphism means that parent class references point to subclass objects, thus producing multiple forms.
- JavaBase 26697 2023-03-10 13:36:54
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- What is the difference between overloading and rewriting in java
- Differences: 1. Overloading implements compile-time polymorphism, while rewriting implements run-time polymorphism. 2. Overloading occurs in a class, and the parameter list of the method with the same name must be different; while overwriting occurs between a subclass and a parent class, the overriding method of the overridden method must be the same. 3. The return type of an overloaded method can be modified, but the overridden method cannot. 4. The exceptions of overloaded methods can be modified, and the exceptions of overridden methods can be reduced or deleted. New or wider exceptions must not be thrown. 5. The access of overloaded methods can be modified, but the access of overridden methods must not be more strictly restricted.
- JavaBase 21731 2023-01-28 16:43:05
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- What are the most commonly used technology stacks in Java?
- Commonly used technology stacks in Java include: 1. JDK; 2. Web framework; 3. Web container; 4. ORM framework; 5. Spring; 6. Database; 7. Search engine; 8. Back-end template engine; 9. Workflow ; 10. Other language middleware, such as Kafka, RocketMQ or RabbitMQ, etc.
- JavaBase 8380 2023-02-02 15:28:43